tiny.sys.x11.xlib

1pub const xlib = @import("xlib.zig");

1const std = @import("std");23const sys = @import("../root.zig");4const display_mod = @import("display.zig");56pub const Error = error{7    RuntimeUnavailable,8    SymbolMissing,9    InvalidDisplay,10};1112pub const Display = opaque {};1314const XOpenDisplayFn = *const fn (display_name: ?[*:0]const u8) callconv(.c) ?*Display;15const XCloseDisplayFn = *const fn (display: *Display) callconv(.c) c_int;1617pub const Connection = struct {18    library: sys.dynamic.Library,19    display: *Display,20    close_fn: XCloseDisplayFn,2122    pub fn close(self: *Connection) void {23        _ = self.close_fn(self.display);24        self.library.close();25        self.* = undefined;26    }27};2829pub fn openTarget(target: display_mod.Target) Error!Connection {30    var name_buffer: [32]u8 = undefined;31    const name = std.fmt.bufPrintSentinel(&name_buffer, ":{d}.{d}", .{ target.display, target.screen }, 0) catch return error.InvalidDisplay;32    return openName(name);33}3435pub fn openDefault() Error!Connection {36    return openName(null);37}3839fn openName(name: ?[:0]const u8) Error!Connection {40    var library = sys.dynamic.openX11Library() catch return error.RuntimeUnavailable;41    errdefer library.close();4243    const open_fn = library.lookup(XOpenDisplayFn, "XOpenDisplay") orelse return error.SymbolMissing;44    const close_fn = library.lookup(XCloseDisplayFn, "XCloseDisplay") orelse return error.SymbolMissing;45    const display = open_fn(if (name) |actual| actual.ptr else null) orelse return error.RuntimeUnavailable;46    return .{47        .library = library,48        .display = display,49        .close_fn = close_fn,50    };51}5253test "xlib dynamic candidate list is host-scoped" {54    const candidates = sys.dynamic.x11LibraryCandidates();55    try std.testing.expect(candidates.len >= 1);56    if (comptime @import("builtin").os.tag == .linux) {57        try std.testing.expect(sys.dynamic.hasHostCandidate(candidates));58    }59}